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  1. #1

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    Butane for developer preservation

    I have seen this posted various times and happened on someone else's unused Ronsonol lighter fluid in the house today. Is this the same stuff, or am I looking for a gas? I haven't a clue.

    Thanks.
    Philip Ulanowsky

    Sine scientia ars nihil est. (Without science/knowledge, art is nothing.)
    https://www.flickr.com/photos/156933346@N07/

  2. #2
    pendennis's Avatar
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    Re: Butane for developer preservation

    I believe butane is a gas at standard atmosphere. Butane lighters store it under pressure. Ronsonol lighter fluid (yellow can) is naptha.
    Best,
    Dennis

  3. #3

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    Re: Butane for developer preservation

    Butane is definitely a gas. Lighter fluid is not.

  4. #4

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    Re: Butane for developer preservation

    A free source of inert gas is your breath... Take a drinking straw and blow a big exhale into the airspace of your developer storage bottle... The CO2 displaces oxygen, and my stock solutions are good for months...

    Steve K

  5. #5

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    Re: Butane for developer preservation

    Quote Originally Posted by LabRat View Post
    A free source of inert gas is your breath... Take a drinking straw and blow a big exhale into the airspace of your developer storage bottle... The CO2 displaces oxygen, and my stock solutions are good for months...

    Steve K
    This has been my method for decades, best if I can hold me breath a long time, as the percentage of CO2 increases. Decades ago, there was nitrogen in a can (still available for wine drinkers), but that's not in my budget, either for wine or my print bath, so I was just wondering about something better, since my darkroom time is a bit more spread out now.

    (I do decant into smaller bottles as volume goes down as well. I can buy a gallon of my print developer with free shipping for the cost of 2 quarts [plus shipping]. It goes into top-full quart containers.)
    Philip Ulanowsky

    Sine scientia ars nihil est. (Without science/knowledge, art is nothing.)
    https://www.flickr.com/photos/156933346@N07/

  6. #6

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    Re: Butane for developer preservation

    Quote Originally Posted by Ulophot View Post
    ...Decades ago, there was nitrogen in a can (still available for wine drinkers), but that's not in my budget, either for wine or my print bath, so I was just wondering about something better, since my darkroom time is a bit more spread out now. ...
    Don't know how safe it is for wine but works fine for chems and varnishes it's a little spendy and the can doesn't last very long -
    http://www.bloxygen.com/

    There are also other blanketing gasses in a can that are not nitrogen, I don't know how compatible they would be for photo chems, I use it for
    urethane rubbers and resins - https://polytek.com/products/polypurge-dry-aerosol-gas

  7. #7

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    Re: Butane for developer preservation

    On my budget, holding my breath wins, hands-down. As for the $12 for Bloxygen, as I usually remark only regarding items or services costing above $1,000, "That's a good bottle of wine!"
    Philip Ulanowsky

    Sine scientia ars nihil est. (Without science/knowledge, art is nothing.)
    https://www.flickr.com/photos/156933346@N07/

  8. #8

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    Re: Butane for developer preservation

    Quote Originally Posted by Ulophot View Post
    On my budget, holding my breath wins, hands-down. As for the $12 for Bloxygen, as I usually remark only regarding items or services costing above $1,000, "That's a good bottle of wine!"
    I suggest not bothering with any of this, including using your breath, which will do virtually nothing. Use some smaller bottles, or simply use a developer with better keeping properties.

  9. #9
    Eric Woodbury
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    Re: Butane for developer preservation

    breath still has much oxygen. We are not efficient about the conversion because CO2 is poisonous to humans. CO2 is acidifiying, but not much. Ask the coral.

  10. #10

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    Re: Butane for developer preservation

    If I was going to spray a gas into a developer bottle to drive the oxygen out, it wouldn't be flammable. Save the butane for fancy cigarette lighters.
    In recent times, I've used two methods to deal with developer oxidization; 1) one-shot mixes from a concentrate (Pyrocat in glycol) and previously, XTOL stored in 500ml brown glass bottles.

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